People reports that Caleb Bankston, who competed on Survivor: Blood and Water, died on Tuesday when the train he was on derailed.

Bankston, who worked at the Alabama Warrior Railway in Birmingham, was 26. He competed on the show in 2013 alongside his fiancé, Colton Cumbie, ending the game in ninth place.

“Caleb was an amazing man and friend,” fellow contestant Aras Baskauskas told People. “One of the sweetest and most sincere humans I’ve ever come across. I am gutted by his loss. My thoughts and prayers are with his family.”

Survivor host Jeff Probst also mourned Bankston in a statement: “The entire Survivor crew is together in Nicaragua. We are shocked and deeply saddened by the loss of Caleb. He was one of the most humble and likable contestants we’ve ever had the pleasure of working with on the show. A true gentleman. He will be missed by so many. We extend our most sincere condolences to his family and to his fiance, Colton.”

Bankston is the third Survivor contestant to die since the show premiered in 2000. In 2010, Jenn Lyon, who placed fourth on Survivor: Palau in 2005, died after a long battle with breast cancer. Last year, original Survivor contestant B.B. Andersen died at age 77 after a battle with brain cancer.